From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tvrtko Ursulin Subject: Re: [PATCH v3] drm/i915: Only report a wakeup if the waiter was truly asleep Date: Thu, 6 Apr 2017 18:40:10 +0100 Message-ID: <33500aec-54a4-e1da-0a7c-0bc027c92267@linux.intel.com> References: <20170406093039.13859-1-chris@chris-wilson.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by gabe.freedesktop.org (Postfix) with ESMTPS id 3B4096E9D2 for ; Thu, 6 Apr 2017 17:40:16 +0000 (UTC) In-Reply-To: <20170406093039.13859-1-chris@chris-wilson.co.uk> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Chris Wilson , intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org CgpPbiAwNi8wNC8yMDE3IDEwOjMwLCBDaHJpcyBXaWxzb24gd3JvdGU6Cj4gSWYgd2UgYXR0ZW1w dCB0byB3YWtlIHVwIGEgd2FpdGVyLCB3aG8gaXMgY3VycmVudGx5IGNoZWNraW5nIHRoZSBzZXFu bwo+IGl0IHdpbGwgYmUgaW4gdGhlIFRBU0tfSU5URVJSVVBUSUJMRSBzdGF0ZSBhbmQgdHR3dSB3 aWxsIHJlcG9ydCBzdWNjZXNzLgo+IEhvd2V2ZXIsIGl0IGlzIGFjdHVhbGx5IGF3YWtlIGFuZCBm dW5jdGlvbmluZyAtLSBzbyBkZWxheSByZXBvcnRpbmcgdGhlCj4gYWN0dWFsIHdha2UgdXAgdW50 aWwgaXQgc2xlZXBzLgo+Cj4gdjI6IERlZmVuZCBhZ2FpbnN0ICFDT05GSUdfU01QCj4gdjM6IERv bid0IGZpbHRlciBvdXQgY2FsbHMgdG8gd2FrZV91cF9wcm9jZXNzCj4KPiBSZWZlcmVuY2VzOiBo dHRwczovL2J1Z3MuZnJlZWRlc2t0b3Aub3JnL3Nob3dfYnVnLmNnaT9pZD0xMDAwMDcKPiBTaWdu ZWQtb2ZmLWJ5OiBDaHJpcyBXaWxzb24gPGNocmlzQGNocmlzLXdpbHNvbi5jby51az4KPiBDYzog VHZydGtvIFVyc3VsaW4gPHR2cnRrby51cnN1bGluQGludGVsLmNvbT4KPiBDYzogSm9vbmFzIExh aHRpbmVuIDxqb29uYXMubGFodGluZW5AbGludXguaW50ZWwuY29tPgo+IC0tLQo+ICBkcml2ZXJz L2dwdS9kcm0vaTkxNS9pbnRlbF9icmVhZGNydW1icy5jIHwgMTggKysrKysrKysrKysrKysrKy0t Cj4gIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX3JpbmdidWZmZXIuaCAgfCAgNCArKysrCj4g IDIgZmlsZXMgY2hhbmdlZCwgMjAgaW5zZXJ0aW9ucygrKSwgMiBkZWxldGlvbnMoLSkKPgo+IGRp ZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9icmVhZGNydW1icy5jIGIvZHJp dmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfYnJlYWRjcnVtYnMuYwo+IGluZGV4IDljY2JmMjYxMjRj Ni4uODA4ZDNhM2NkYTBhIDEwMDY0NAo+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVs X2JyZWFkY3J1bWJzLmMKPiArKysgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9icmVhZGNy dW1icy5jCj4gQEAgLTI3LDYgKzI3LDEyIEBACj4KPiAgI2luY2x1ZGUgImk5MTVfZHJ2LmgiCj4K PiArI2lmZGVmIENPTkZJR19TTVAKPiArI2RlZmluZSB0YXNrX2FzbGVlcCh0c2spICghKHRzaykt Pm9uX2NwdSkKPiArI2Vsc2UKPiArI2RlZmluZSB0YXNrX2FzbGVlcCh0c2spICgodHNrKSAhPSBj dXJyZW50KQo+ICsjZW5kaWYKCkl0IHJlYWxseSBib3RoZXJzIHRvIGZpc2ggaW50byB0aGlzIGxv dyBsZXZlbCBpbmZvIHdoaWNoIHByb2JhYmx5IGlzbid0IAppbnRlbmRlZCB0byBiZSB1c2VkIGZy b20gdGhlIG91dHNpZGUuCgo+ICsKPiAgc3RhdGljIHVuc2lnbmVkIGludCBfX2ludGVsX2JyZWFk Y3J1bWJzX3dha2V1cChzdHJ1Y3QgaW50ZWxfYnJlYWRjcnVtYnMgKmIpCj4gIHsKPiAgCXN0cnVj dCBpbnRlbF93YWl0ICp3YWl0Owo+IEBAIC0zNyw4ICs0MywxNiBAQCBzdGF0aWMgdW5zaWduZWQg aW50IF9faW50ZWxfYnJlYWRjcnVtYnNfd2FrZXVwKHN0cnVjdCBpbnRlbF9icmVhZGNydW1icyAq YikKPiAgCXdhaXQgPSBiLT5pcnFfd2FpdDsKPiAgCWlmICh3YWl0KSB7Cj4gIAkJcmVzdWx0ID0g RU5HSU5FX1dBS0VVUF9XQUlURVI7Cj4gLQkJaWYgKHdha2VfdXBfcHJvY2Vzcyh3YWl0LT50c2sp KQo+ICsKPiArCQkvKiBCZSBjYXJlZnVsIG5vdCB0byByZXBvcnQgYSBzdWNjZXNzZnVsIHdha2V1 cCBpZiB0aGUgd2FpdGVyCj4gKwkJICogaXMgY3VycmVudGx5IHByb2Nlc3NpbmcgdGhlIHNlcW5v LCB3aGVyZSBpdCB3aWxsIGhhdmUKPiArCQkgKiBhbHJlYWR5IGNhbGxlZCBzZXRfdGFza19zdGF0 ZShUQVNLX0lOVEVSUlVQVElCTEUpLgo+ICsJCSAqLwo+ICsJCWlmICh0YXNrX2FzbGVlcCh3YWl0 LT50c2spKQo+ICAJCQlyZXN1bHQgfD0gRU5HSU5FX1dBS0VVUF9BU0xFRVA7CgpBbmQgdGhpcyBz dGlsbCBoYXMgdGhlIHByb2JsZW0gb2Ygbm90IGJlaW5nIGF0b21pYyBiZXR3ZWVuIHJlcG9ydGlu ZyB0aGUgCnR3byBmbGFncy4gU28gdGhlIHJlcG9ydGVkIHN0YXR1cyBjYW4gYmUgZmFsc2Ugd2hp Y2ggYWxzbyBib3RoZXJzIG1lLgoKSSB3aWxsIG5lZWQgdG8gdGFrZSBzb21lIG1vcmUgdGltZSB0 aGlua2luZyBhYm91dCB0aGlzLgoKUmVnYXJkcywKClR2cnRrbwoKPiArCj4gKwkJaWYgKHdha2Vf dXBfcHJvY2Vzcyh3YWl0LT50c2spKQo+ICsJCQlyZXN1bHQgfD0gRU5HSU5FX1dBS0VVUF9TVUND RVNTOwo+ICAJfQo+Cj4gIAlyZXR1cm4gcmVzdWx0Owo+IEBAIC05OCw3ICsxMTIsNyBAQCBzdGF0 aWMgdm9pZCBpbnRlbF9icmVhZGNydW1ic19oYW5nY2hlY2sodW5zaWduZWQgbG9uZyBkYXRhKQo+ ICAJICogYnV0IHdlIHN0aWxsIGhhdmUgYSB3YWl0ZXIuIEFzc3VtaW5nIGFsbCBiYXRjaGVzIGNv bXBsZXRlIHdpdGhpbgo+ICAJICogRFJNX0k5MTVfSEFOR0NIRUNLX0pJRkZJRVMgWzEuNXNdIQo+ ICAJICovCj4gLQlpZiAoaW50ZWxfZW5naW5lX3dha2V1cChlbmdpbmUpICYgRU5HSU5FX1dBS0VV UF9BU0xFRVApIHsKPiArCWlmIChpbnRlbF9lbmdpbmVfd2FrZXVwKGVuZ2luZSkgPT0gRU5HSU5F X1dBS0VVUCkgewo+ICAJCW1pc3NlZF9icmVhZGNydW1iKGVuZ2luZSk7Cj4gIAkJbW9kX3RpbWVy KCZlbmdpbmUtPmJyZWFkY3J1bWJzLmZha2VfaXJxLCBqaWZmaWVzICsgMSk7Cj4gIAl9IGVsc2Ug ewo+IGRpZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9yaW5nYnVmZmVyLmgg Yi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9yaW5nYnVmZmVyLmgKPiBpbmRleCBjYmU2MWQz ZjMxZGEuLjk3NGE1OTI4YmVjOSAxMDA2NDQKPiAtLS0gYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9p bnRlbF9yaW5nYnVmZmVyLmgKPiArKysgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9yaW5n YnVmZmVyLmgKPiBAQCAtNjYzLDYgKzY2MywxMCBAQCBzdGF0aWMgaW5saW5lIGJvb2wgaW50ZWxf ZW5naW5lX2hhc193YWl0ZXIoY29uc3Qgc3RydWN0IGludGVsX2VuZ2luZV9jcyAqZW5naW5lKQo+ ICB1bnNpZ25lZCBpbnQgaW50ZWxfZW5naW5lX3dha2V1cChzdHJ1Y3QgaW50ZWxfZW5naW5lX2Nz ICplbmdpbmUpOwo+ICAjZGVmaW5lIEVOR0lORV9XQUtFVVBfV0FJVEVSIEJJVCgwKQo+ICAjZGVm aW5lIEVOR0lORV9XQUtFVVBfQVNMRUVQIEJJVCgxKQo+ICsjZGVmaW5lIEVOR0lORV9XQUtFVVBf U1VDQ0VTUyBCSVQoMikKPiArI2RlZmluZSBFTkdJTkVfV0FLRVVQIChFTkdJTkVfV0FLRVVQX1dB SVRFUiB8IFwKPiArCQkgICAgICAgRU5HSU5FX1dBS0VVUF9BU0xFRVAgfCBcCj4gKwkJICAgICAg IEVOR0lORV9XQUtFVVBfU1VDQ0VTUykKPgo+ICB2b2lkIF9faW50ZWxfZW5naW5lX2Rpc2FybV9i cmVhZGNydW1icyhzdHJ1Y3QgaW50ZWxfZW5naW5lX2NzICplbmdpbmUpOwo+ICB2b2lkIGludGVs X2VuZ2luZV9kaXNhcm1fYnJlYWRjcnVtYnMoc3RydWN0IGludGVsX2VuZ2luZV9jcyAqZW5naW5l KTsKPgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRl bC1nZnggbWFpbGluZyBsaXN0CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6 Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngK